package net.xdclass.service.impl;

import lombok.extern.slf4j.Slf4j;
import net.xdclass.constant.CacheKey;
import net.xdclass.enums.BizCodeEnum;
import net.xdclass.enums.SendCodeEnum;
import net.xdclass.component.MailService;
import net.xdclass.service.NotifyService;
import net.xdclass.utils.CheckUtil;
import net.xdclass.utils.CommonUtil;
import net.xdclass.utils.JsonData;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

@Service
@Slf4j
public class NotifyServiceImpl implements NotifyService {

    @Autowired
    private MailService mailService;

    @Autowired
    private StringRedisTemplate redisTemplate;

    /**
     * 验证码标题
     */
    private static final String SUBJECT = "xdclass验证码";

    /**
     * 验证码内容
     */
    private static final String CONTENT = "您的验证码是%s, 有效时间为60秒， 打死不要告诉别人";

    /**
     * 验证码10分钟有效
     */
    private static final int CODE_EXPIRED = 60 * 1000 * 10;

    /**
     * 发送验证码
     * @param sendCodeEnum
     * @param to
     * @return
     */
    @Override
    public JsonData sendCode(SendCodeEnum sendCodeEnum, String to) {

        String cacheKey = String.format(CacheKey.CHECK_CODE_KEY, sendCodeEnum.name(), to);

        String cacheValue = redisTemplate.opsForValue().get(cacheKey);

        //如果不为空，判断是否60s内重复发送
        if (StringUtils.isNotBlank(cacheValue)){
            //TODO
            long ttl = Long.parseLong(cacheValue.split("_")[1]);
            //当前时间错-验证码发送时间戳 小于60s则不发送
            if (CommonUtil.getCurrentTimestamp() - ttl < 60 * 1000){
                log.info("重复发送验证码,时间间隔：{}秒", (CommonUtil.getCurrentTimestamp() - ttl) / 1000);
                return JsonData.buildResult(BizCodeEnum.CODE_LIMITED);
            }
        }

        //拼接验证码和时间戳
        String code = CommonUtil.getRandomCode(6);

        String value = code+"_" + CommonUtil.getCurrentTimestamp();

        redisTemplate.opsForValue().set(cacheKey, value, CODE_EXPIRED, TimeUnit.MILLISECONDS);

        if (CheckUtil.isEmail(to)){
            //邮箱验证码
            mailService.sendMail(to, SUBJECT, String.format(CONTENT, code));
            return JsonData.buildSuccess();
        }else if (CheckUtil.isPhone(to)){
            //短信验证码

        }

        return JsonData.buildResult(BizCodeEnum.CODE_TO_ERROR);
    }

    /**
     * 校验验证码
     * @param sendCodeEnum
     * @param to
     * @param code
     * @return
     */
    @Override
    public boolean checkCode(SendCodeEnum sendCodeEnum, String to, String code) {

        String cacheKey = String.format(CacheKey.CHECK_CODE_KEY, sendCodeEnum.name(), to);
        String cacheValue = redisTemplate.opsForValue().get(cacheKey);
        if (StringUtils.isNotBlank(cacheValue)){
            String cacheCode = cacheValue.split("_")[0];
            if (cacheCode.equals(code)){
                redisTemplate.delete(cacheKey);
                return true;
            }
        }
        return false;
    }
}
